Crow&#39;s-nest for ships



A. E. DE SAVE.

CROWS NEST FOR SHIPS.

APPLICATION FILED MAR. 22, 1918.

1,354,3 3, PatentedSept. 28,1920.

2 SHEETS-SHEET WITNESSES INVENTOI? /4. Eflafara WWYA 4 ATTORNEYS A El CROWS NEST FOR SHIPS.

APPLICATION FILED MAR. 22. I918.

Patented Sept. 28,1920.

2 SHEETS-SHEET 2.

WITNESSES INVENTOR I A. f; 06 5a ve ATTORNEYS ARTHUR E. DIE SAVE, OF MOBILE, ALABAMA.

OROXVS-NEST FOR SHIPS.

Application filed. March 22, 1913.

To all whom it may concern Be it known that I, ARTHUR E. DE SAVE, a citizen of Great Britain and Treland, resident of Mobile, Mobile county, Alabama, have invented a new and Tmproved crows- Nest for Ships, of which the following is a full, clear, and exact description.

M Y invention has for its object to provide a crows-nest which is inclosed to afford protection for the lookout and which is supported by a universal oint ona boom which extends from a mast on a ship.

Additional objects of the invention will appear in the following specification in which the preferred form of my invention is described.

In the drawings similar reference characters refer to similar parts in all the views, in which Figure 1 is a view illustrating the manner in which my invention is used.

Fig. 2 is an enlarged view illustrating the crows-nest and the means which are employed for securing it to a mast.

Fig. 3 is a sectional plan view of Fig. 2.

Fig. 4 is a sectional view of Fig. 2 through the crows-nest and looking in the direction of the mast, and

Fig. 5 is a sectional view on the line 5--5 of Fig. 4.

By referring to the drawings, it will be seen that the ship is provided with a mast 10 and that straps 11 and 12 are bolted to the mast; the strap 12 being disposed at a distance above the strap 11. Secured to the strap 11, there is a block 13 and extending at the sides of the strap 11, there are arms 14. Beams 15 are provided having a set of ends 16 which are disposed at the sides to the block 13, the ends 16 of the beams being held in position relatively to the block 13 by means of bolts 17. The other set of ends 18 of the beams are disposed against the sides of a member 19 of a universal joint 20; the ends 18 of the beams 15 being secured to this universal joint member 19. The universal joint 20 has another member 21 which is secured to the top 22 of the crows-nest 23.

It will be seen that with this construction. the crows-nest 23 will at all times be held with its bottom 24 and with its top .22 in a horizontal position, so that the work of the lookouts' stationed within the crows-nest may not be interfered with by the rolling and pitching of the ship.

Specification of Letters Patent.

' vided with two periscopes 31,

Patented Sept. 28, 1920. Serial No. 223,961.

Braces 26 are bolted to the arms 14, the braces 26 converging forwardly and being bolted to the beam 15 at 27. Additional supports for the beams 1.5 consist of members 28 which are bolted to the strap 12 and to the beams 15 adjacent the universal joint.

In the bottom 24 of the crows-nest 23 tiere is a trap-door 29 which is normally closed but which may be opened to afford communication with the deck when desired. There is also a hatch 30 at the top 22 of the crows-nest through which entrance may be made. The crows-nest is preferably proone disposed on each side, each of these periscopes being provided with means 32 by which it may be rotated. Should the crows-nest be used without the periscopes 31. the watch may keep a most efficient lookout through the windows 33 in the sides of the crows-nest, the watch having a larger vision than in the ordglnary crows-nests which are now being use The crows-nest may be provided with telegraph or other means for communicating with the bridge and gun crews and it may also be provided with an electric heater for winter and wit-h fans for summer, so that at all seasons of the year the crowsnest may be made as comfortable as possible. The crows-nest may be reached from the beams 15 and is provided with a foot board 34 with a hand rail 35. As illustrated in Fig. 5 of the drawings, the hatch may be opened and closed by means of a lever 36. entrance being afforded to the crows-nest when the said hatch is opened.

The crows-nest is supported on the beam 15 by a universal joint as has been described, and this will retain the crows-nest in a perpendicular position at all times and irrespective of any pitching and rolling motion of the ship, as this pitching and rolling motion will be taken up by the universal joint. The only motion of the crows-nest will be a vertical motion. As the lookout in the crows-nest is protected from the weather and is made comfortable, it is possible for him to keep a better lookout for a longer period of time and without eye strain than is the case under the present conditions.

The crowsnest may be reached by a foot board 40 which is supported on the beam 15 by brackets 42, the foot board 40 extending from the mast 10 to a point from the croWsnest. The foot board 40 is provided with a handrail &1 Which eiitends i rom' the rnast to the outer end of the foot board, the hand rail 41 being fastened to the beam 15.

What I c] aim as new and desire to secure .by Letters Patent is :and secured-totheblock and their other set of ends disposed at the sides of a member of the *unlversal o1nt and secured thereto, and a crows-nest secured to the other member I of the universal joint.

A. E. DE SAVE. 

